电压比较器,广泛用于工业控制机的A/D转换装置、自动控制装置及其许多电子仪器设备中,作为信号大小比较之用,是一个极其重要的电子线路部件。设计一个电压比较器,技术指标要求尽管很多,诸如比较器的精度及灵敏度、输入电压范围、共模抑制比以及输入阻抗等,但主要考虑的应该是它的精度和灵敏度。为此,除了注 Voltage comparators, which are widely used in A / D converters, automatic control devices and many electronic equipment of industrial controllers, are an extremely important electronic circuit component for comparison of signal sizes. The design of a voltage comparator, although many technical requirements, such as the comparator accuracy and sensitivity, input voltage range, common mode rejection ratio and input impedance, but the main consideration should be its accuracy and sensitivity. To this end, except note